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支持的Fe₃O₄@SiO₂功能化甲基2-基乙酸作为伊萨合成的可持续催化剂

Abolfazl Mohammadkhani¹, Reza Samizad¹, Akbar Heydari²

¹Department of Chemistry, Tarbiat Modares University, Tehran, Iran.

Scientific reports

|May 15, 2025

概括

研究人员开发了一种可重复使用的Fe3O4@SiO2-SD@Pd催化剂,用于可持续的Heck,C-H激活和循环添加反应. 这种对环境无害的催化剂在五个周期内保持高效率,减少危险废物.

科学领域:

绿色化学绿色化学
材料科学材料科学材料科学
催化剂是一种催化剂.

背景情况:

可持续催化强调异质催化剂,以尽量减少有毒溶剂和危险反应.
保护活跃地点对于催化剂的寿命和效率至关重要.
开发可重复使用和有效的催化剂是环境无害化学合成的关键.

研究的目的:

为了合成和评估新型Fe3O4@SiO2-SD@Pd催化剂的有效性和可重复使用性.
评估催化剂在Heck,C-H激活和循环添加反应中的性能.
为了确认催化机制和环境效益.

主要方法:

合成Fe3O4@SiO2-SD@Pd催化剂. 这是一个非常好的方法.
使用FT-IR,TGA,FE-SEM,VSM,TEM,BET,ICP,EDS,映射和XRD进行全面的表征.
在中度条件下对Heck的催化活性,C-H激活和循环添加反应的评估.

主要成果:

Fe3O4@SiO2-SD@Pd在伊萨丁赫克,C-H激活和循环添加反应中表现出有效性,产量在78%至88%之间.
催化剂在使用DMF-H2O溶剂混合物在较低温度的多个反应中显示出同时活性.
对中毒的测试表明Pd(0)/Pd(+2) 催化机制.

结论:

Fe3O4@SiO2-SD@Pd催化剂是有效的,可重复使用的,并且对环境无害.
催化剂在五个重复使用周期中保持了高效率,没有显著的损失.
这种发展有助于可持续的催化,使有效和更绿色的化学转化.

关键词:

通过C-H的化.双伊萨丁合反应反应甲基2- () 基.帕拉支的支持在Pd催化过程中,Pd被催化.

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